"Marvin is an important part of our core, and we're very pleased to keep him in a Hawks uniform," Sund said. "As one of our talented and versatile young veterans, he's shown improvement every year in the league."

Williams could have accepted the Hawks qualifying offer of $7.5 million and become an unrestricted free agent next summer. Instead, like Bibby and Pachulia, he decided on a long-term commitment to the Hawks.